Dear Waverley, Try this: unlist(slot(perf,"y.values"))
See ?slot for more details. HTH, Jorge On Sat, Feb 7, 2009 at 3:17 PM, Waverley <waverley.paloa...@gmail.com>wrote: > Hi, > > I have a question about ROCR package. I got the ROC curve plotted > without any problem following the manual. However, I don't know to > extract the values, e.g. y.values ( I think it is the area under the > curve auc measure). The return is an object of class "performance" > which have Slots and one of the slot is "y.values". I type the object > and I can see them in screen. But I want to extract the value for > further programming and computation. I did a summary of the object > and it is a "S4" mode which I don't understand. > > Can someone help? > > Thanks a lot in advance. > > -- > Waverley @ Palo Alto > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
